KR101742218B1 - Maintenance apparatus of leg of floating structure - Google Patents

Maintenance apparatus of leg of floating structure Download PDF

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Publication number
KR101742218B1
KR101742218B1 KR1020150108000A KR20150108000A KR101742218B1 KR 101742218 B1 KR101742218 B1 KR 101742218B1 KR 1020150108000 A KR1020150108000 A KR 1020150108000A KR 20150108000 A KR20150108000 A KR 20150108000A KR 101742218 B1 KR101742218 B1 KR 101742218B1
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KR
South Korea
Prior art keywords
frame
maintenance
unit
brace
leg
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KR1020150108000A
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Korean (ko)
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KR20170014502A (en
Inventor
박주신
조태민
장기복
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삼성중공업 주식회사
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Priority to KR1020150108000A priority Critical patent/KR101742218B1/en
Publication of KR20170014502A publication Critical patent/KR20170014502A/en
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Publication of KR101742218B1 publication Critical patent/KR101742218B1/en

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    • B63B9/00—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B9/065—
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/04—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction
    • E02B17/08—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering
    • E02B17/0818—Equipment specially adapted for raising, lowering, or immobilising the working platform relative to the supporting construction for raising or lowering with racks actuated by pinions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/727—Offshore wind turbines

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Wind Motors (AREA)

Abstract

The present invention relates to a maintenance apparatus for legs of a floating structure. Specifically, according to a first embodiment of the present invention, there is provided a vertical moving unit provided so as to be vertically movable with respect to a leg for selectively fixing a floating structure to a seabed, ; A pinion engaging a rack included in the leg; A driving motor provided in the frame, for rotating the pinion to move the up-and-down moving unit; And maintenance means provided in the frame, the maintenance means including equipment for maintaining and repairing the code portion.

Description

[0001] MAINTENANCE APPARATUS OF LEG OF FLOATING STRUCTURE [0002]

The present invention relates to a maintenance apparatus for legs of a floating structure.

In recent years, various floating structures have been developed. Among them, floating structures are being developed, which have a self-propelled ability to move to a specific position, and lift the hull from the sea to carry out a predetermined operation.

For example, a floating structure such as a jack-up drilling rig, a wind turbine installation vessel (WTIV), a mobile offshore drilling unit (MODU) And a plurality of legs that are installed as far as possible. Such a floating structure can be moved to a specific position in the sea, lowering the legs, fixing the hull, and then shifting to the working state by lifting the hull along the legs.

In such a floating structure, the leg is provided so as to penetrate the hull in the vertical direction, and a predetermined structure such as a jack house for fixing the leg to the hull and lifting the hull along the leg is provided.

Such a floating structure may include three to six legs, each of which may comprise a cord extending in a vertical direction and a brace connecting the cords in a truss shape. These codes can have a pipe shape as a whole.

Once the floating area is determined, the floating structure is ready for drilling and production in the working area. Since the time required for these operations is generally a long period of 5 to 7 years, the legs must be maintained for a long period of time with the hulls raised. Such long-lived legs become aging over time, requiring maintenance work such as coating, removing deposits, and replacing braces.

However, due to the nature of the legs extending to the underside of the hull, the maintenance work of the legs has to be performed on the lower side of the hull.

The embodiments of the present invention have been made to solve the above-mentioned problems, and it is an object of the present invention to provide a maintenance apparatus for a leg which can easily perform a maintenance work on legs.

The present invention also provides a maintenance apparatus for a leg which minimizes the environmental impact of byproducts generated when the legs are maintained.

According to an aspect of the present invention, there is provided an elevating apparatus comprising: a vertically moving unit provided so as to be movable up and down with respect to a leg for selectively fixing a floating structure to a seabed; A pinion engaging a rack included in the leg; A driving motor provided in the frame, for rotating the pinion to move the up-and-down moving unit; And maintenance means provided in the frame, the maintenance means including equipment for maintaining and repairing the code portion.

Further, it is possible to provide a maintenance and repair apparatus for the leg including the unit protective member covering the back surface of the maintenance means.

Further, it is possible to provide a maintenance and repair apparatus for the leg including the protection member operating means capable of expanding or winding the unit protecting member.

In addition, the maintenance means may be provided with a maintenance and repair apparatus for the leg including at least one of a coating means, a cleaning means and a brace replacement means.

Further, the frame may be provided with a maintenance and repair apparatus of the leg extending to correspond to all or a part of the outermost brace.

Also, the frame may include a platform, and the maintenance means may be provided with a maintenance and repair apparatus for the legs provided to the platform included in the frame.

In addition, the maintenance means may comprise a coating means, a cleaning means and a brace replacement means, said frame comprising a plurality of frame layers, said coating means being provided in one of said plurality of frame layers, And the brace replacing means is provided to another one of the plurality of frame layers.

Also, the up-and-down moving unit may be provided with a leg maintenance and repair apparatus provided up to the number corresponding to the number of code units included in the legs.

It is also preferable that the up-and-down moving unit is provided with a unit protective member covering the back surface of the maintenance means, and a brace protecting member is provided between the up-and-down moving units, Or a maintenance and repair apparatus of the leg provided with a separate member from the unit protective member may be provided.

Further, it is possible to provide a maintenance and repair apparatus for the leg, which includes a protection member operating means that can expand or wind at least one of the unit protective member and the brace protection member.

Further, the frame may be provided with a maintenance and repair apparatus for a leg including a frame extending portion extending from one up-down moving unit to another up-down moving unit.

Further, the maintenance means may be provided with a maintenance and repair apparatus for the legs provided in the frame extension portion.

According to the embodiment of the present invention, it is possible to more easily maintain the legs.

In addition, the effect on the environment can be minimized during maintenance work on the legs.

FIG. 1 is a conceptual view showing a state in which a floating structure is fixed by a leg in which a maintenance apparatus for a leg according to a first embodiment of the present invention is used.
2 is a schematic cross-sectional view of a vertical movement unit of the maintenance apparatus of the leg according to the first embodiment.
3 is a plan view showing a state in which the up-and-down moving unit shown in Fig. 2 is supported by the legs.
Fig. 4 is a schematic perspective view of a maintenance apparatus for legs including maintenance means; Fig.
Fig. 5 is a perspective view schematically showing a state in which a protecting member of the maintenance apparatus of the leg is wound according to the second embodiment. Fig.
6 is a perspective view schematically showing a state in which the protecting member of the maintenance apparatus of the leg is unfolded according to the second embodiment;
7 is a plan view of a maintenance apparatus for a leg including a plurality of vertically moving units according to a third embodiment;
8 is a perspective view of a maintenance apparatus for a leg including a plurality of layered frames, according to a fourth embodiment;
9 is a plan view of a maintenance apparatus for a leg according to a fifth embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 1 is a conceptual view showing a state in which a floating structure is fixed by a leg in which a maintenance apparatus for a leg according to a first embodiment of the present invention is used.

Referring to FIG. 1, the floating structure 1 includes a main body 10 having a floating performance, and a plurality of legs 20 installed to penetrate the main body 10 in the vertical direction.

This floating structure 1 may be a wind turbine installation vessel (WTIV) for installing a wind turbine at sea, a mobile drill rig (MODU), or any other floating structure that can be spaced from the sea along leg 20 It may be a cooling structure. In addition, the floating structure 1 may be a floating structure that is not movable and fixedly installed at a specific point. 1, legs 20 are illustrated as being passed through the main body 10, but this is only an example, and the idea of the present invention is that the legs 20 are provided so as to be movable in the vertical direction of the main body 10 Which can be applied to all floating structures.

The floating structure 1 may also be a wind turbine installation vessel (WTIV) for installation of a wind turbine at sea, a mobile drill ship (MODU), or any other arrangement that may be spaced from the sea along the legs 20 It may be a floating structure. In addition, the floating structure 1 may be a floating structure that is not movable and fixedly installed at a specific point.

The legs 20 can move up and down along the main body 10. More specifically, the legs 20 and the main body 10 perform relative motion in the up and down directions. When the main body 10 is floating in the sea, the legs 20 are moved in the vertical direction, The main body 10 can be moved up and down along the legs 20 in a state where the main body 10 is fixed to the seabed. To this end, the legs 20 may comprise a rack 26, which is formed with teeth.

In addition, the floating structure 1 may include a driving device (not shown) that supports the legs 20 and can move the legs 20 in the vertical direction. At this time, the rack 26 extended in the moving direction of the leg 20 is engaged with the pinion provided in the driving device so that the driving force of the driving device is transmitted to the rack 26, and the leg 20 can be moved accordingly .

The legs 20 may be moved downwardly of the main body 10 and fixed to the seabed. A plurality of legs 20 may be provided to support the load of the main body 10. [

The floating structure 1 can move in a state in which the legs 20 are moved upward so as not to interfere with the operation and move the legs 20 downward when the position is different from the target position, And can be fixed to the seabed (B). Thereafter, the main body 10 can be moved up and down along the legs 20.

The main body 10 moves upward along the legs 20 and then is fixed in a state spaced apart from the sea surface S and performs a predetermined operation while being spaced apart from the sea surface S and fixed .

1, the legs 20 included in the floating structure 1 include not only the above-described rack 26 but also a plurality of braces 21 and cords 24, 21 may be welded to the circumferential surface of the cord 24 and connected to form a truss structure with respect to the cord 24.

Meanwhile, in order to maintain the leg 20 of the floating structure 1 described above, the work must be performed from the lower side of the hull, which is difficult in a conventional method. In order to facilitate the maintenance of the leg 20, a maintenance device 40 of the leg 20 described below may be proposed. Hereinafter, the maintenance apparatus 40 of such a leg 20 will be described with reference to Fig. 2 and Fig.

Fig. 2 is a schematic sectional view of the maintenance apparatus 40 of the leg, and Fig. 3 is a plan view showing a state in which the maintenance apparatus 40 of the leg including one up-and-down moving unit is engaged with the legs 20 , Fig. 4 is a schematic perspective view of the maintenance apparatus 40 of the leg including the maintenance means 60. Fig.

2 to 4, the leg maintenance apparatus 40 according to the first embodiment of the present invention can move up and down along the moving direction of the legs 20 (the axial direction of the legs 20) And the vertically moving unit 50 may include the frame 100, the pinion 210, and the drive motor 200. The vertically moving unit 50 includes a frame 100, a pinion 210, The driving motor 200 rotates the pinion 210 engaged with the rack 26 of the leg 20 to generate a driving force so that the vertical moving unit 50 can move up and down along the legs 20 . Although the pinion 210 is rotated by the motor in the present embodiment, the present invention is not limited to the pinion 210, and other means capable of driving the pinion 210 within the scope of the present invention As shown in FIG.

Further, the frame 100 may be provided so as to surround all or a part of the peripheral portion of the code portion constituting the leg 20. Here, the " code portion " can be defined as a concept including at least one of the code 24 and the rack 26 of the leg 20. At this time, there is no limitation on the manner in which the frame 100 surrounds the periphery of the code portion. For example, the frame 100 may include a cylindrical member extending along the moving direction of the up-and-down moving unit 50, or may include a polygonal tube such as a rectangular tube, and one or more thin pipes may surround the peripheral portion It may be a structure extending to surround.

Further, the frame 100 of the up-and-down moving unit 50 may be provided with maintenance means 60 for maintaining and repairing the code portion. At this time, the frame 100 may include a platform 101 that provides a work space, and maintenance means 60 may be disposed on the platform 101 of the frame 100.

Such maintenance means 60 may include equipment for maintaining and repairing the code portion. The equipment for maintenance and repair includes a coating unit 300 for coating a code unit or a brace, a brace replacement unit 400 for cutting / joining and replacing the brace 21, and a sediment accumulated in the cord unit or the brace And a cleaning means 500 capable of removing the cleaning liquid. However, the maintenance means is not limited to the coating means, the cleaning means, and the brace replacement means. Any means that can maintain or repair the leg within the scope of the present invention is not limited to the maintenance means 60, .

Such maintenance means 60 may be provided movably on the frame 100. [ For example, the platform 101 of the frame 100 includes guide rails, and the maintenance means 60 includes wheels engaging the guide rails of the frame, through which the maintenance means (60) can move on the frame. In this case, the maintenance means 60 can move around the periphery of the cord portion and move along the direction in which the outermost brace 22 extends. As an example, FIG. 4 shows a case where the platform 101 is provided with a guide rail 104.

2 to 4, the coating means 300 is shown in the form of a coating spray comprising a coating nozzle 301 and a pressure providing means 302, , But this is only an example. For example, the coating means 300 may be provided in the form of a roll comprising a roller for applying the coating to the cord or brace, and a drive motor for moving the roller.

4, the brace replacing means 400 according to the first embodiment of the present invention may include a cutting device 401 and an arm 402. As shown in FIG. The brace replacement means 400 can remove the brace from the leg 20 by moving the cutting device 401 provided at the end of the arm 402 near the brace to be removed and operating the cutting device 401. At this time, the arm 402 of the brace replacement means 400 may include a plurality of joints, which may include a hinge, and may include a rotation unit for rotating the extension direction of the arm about an axis .

In FIG. 4, the brace replacing means 400 is shown to include the cutting edge 401 and the arm 402, but this is merely an example. For example, the brace replacement means 400 may include a welding device for attaching a new brace to the legs 20, and a brace capable of supporting / carrying the removed brace or a newly attached brace, And may include a holder.

4, the cleaning means 500 includes a circular brush 501 and a driving device 502 for driving such a brush. . Here, the Z direction is set to a direction in which the up / down moving unit 50 moves up and down (the axial direction of the leg 20), the X direction is set to the direction toward the center of the leg, , The axis of the circular brush 501 can be oriented in the X direction when the direction is set to a direction perpendicular to the above X and Z directions (see Fig. 4). In addition, the cleaning means 500 is provided with a rail 503 in the Z direction, and the brush 501 can move up and down along the rail 503. However, this is only an example. For example, the brush 501 may be provided in a circular shape so that its axis may be oriented in the Z direction, and the brush 501 may be provided in a straight line.

Hereinafter, the operation and effects of the leg maintenance apparatus 40 having the above-described structure will be described. The maintenance apparatus 40 for legs according to the first embodiment of the present invention includes a frame 100 for supporting two drive motors 200. [ The frame 100 includes a first support portion 102 and a second support portion 103. The first support portion 102 supports the first drive motor and the second support portion 103 supports the second drive motor . An opening is formed between the first supporting portion 102 and the second supporting portion 103 on the front surface of the leg maintenance device 40 when the up-and-down moving unit 50 is supported by the cord portion of the leg 20 , The cord portion of the leg 20 can enter the first support portion 102 and the second support portion 103 through these openings. The rack 26 is engaged with the pinion 210 after the cord portion has entered the inside of the cord portion of the first support portion 102 and the second support portion 103. [ At this time, at least one of the first support portion 102 and the second support portion 103 moves in the Y direction to facilitate the entry of the code portion into the first support portion 102 and the second support portion 103 So that the width of the opening can be widened.

In the foregoing description, the maintenance apparatus 40 of the leg separated from the leg 20 is supported by the cord portion of the leg 20 at first. However, the present invention is not limited to such an embodiment but also includes that the maintenance apparatus 40 of the leg is supported on the cord portion of the leg 20 from the beginning.

On the other hand, when the upper and lower movable unit 50 is supported by the cord unit so as to be movable up and down of the vertical movement unit 50, the vertical movement unit 50 moves up and down to move to the area requiring maintenance of the legs 20, It is fixed so as not to move up and down any more. The up-and-down moving unit 50 fixed to the maintenance area can include an operation unit, and the operator can operate the maintenance means 60 through the operation unit or move the up-down movement unit 50 up and down .

Hereinafter, the maintenance work through the maintenance means 60 will be described by way of example.

First, in the first embodiment, when painting a code portion or a brace, a coating portion 300 can be painted while moving on the frame 100 to paint a code portion.

In the first embodiment, when the brace is removed, the brace to be removed is held by using the brace holder included in the brace replacement means 400, and then the brace cutting device 401) is used to cut the brace to be removed from the code portion. Thereafter, the brace holder brings the removed brace to the frame 100.

In the first embodiment, when a new brace is to be joined, the new brace is transferred to a place where the new brace is to be attached using the brace holder included in the brace replacement means 400, and brace welding The brace can be bonded to the cord portion through the device.

In addition, in the first embodiment, when the cord portion or the brace is washed, the cleaning means 500 may rotate the brush 501 while moving on the frame 100 to clean the cord portion or the brace. Also, the cleaning means 500 may be provided with rails 503 to move the brushes 501 up and down.

2 to 4 show a case where the width of the platform 101 included in the frame 100 is equal to the width of the first support portion 102 and the second support portion 103, Plate shape is shown as an example, but the spirit of the present invention is not limited thereto. For example, at least one of the frame 100 and the platform 101 may be formed so as to correspond to all or a part of the periphery of the code portion in a state apart from the code portion. One or more of the frame 100 and the platform 101 may be separated from the outermost brace 22 so as to correspond to all or a portion of the outermost brace 22, As shown in FIG.

According to the first embodiment of the present invention, there is an effect that the maintenance work for the legs can be performed more easily.

According to the first embodiment described above, when the legs are maintained using the leg maintenance apparatus, unnecessary by-products such as dust and debris generated in the maintenance operation may adversely affect the environment. Therefore, in order to solve such a problem, a second embodiment described below can be proposed.

Hereinafter, the second embodiment will be described with reference to FIG. 5 is a perspective view schematically showing a maintenance apparatus according to a second embodiment of the present invention.

In describing the second embodiment of the present invention, there is a difference in that the protection member 600 is included as compared with the first embodiment described above. Therefore, differences will be mainly described below, and the same description and reference numerals I will.

Referring to FIG. 5, the leg maintenance apparatus may include a guard member 600 to cover at least one of the back and sides of the maintenance means. To this end, the frame 100 includes a guard member securing portion 105. Such a protective member 600 may include unit protective members 601 and 602 covering the unit and such unit protective members 601 and 602 may include one of the back protective member 601 and one of the side protective members 602 Or more. The rear surface protection member 601 can cover the back surface of the maintenance means 60 and the side surface protection member 602 can cover the side surface of the maintenance means 60. [

The protecting member 600 according to the present embodiment may include a protecting member operating means (not shown) capable of unfolding or lifting the protecting member by operation of the operating portion. Such protection member operating means may include a drive such as a motor for unfolding or lifting the protection member, and may be located at both ends of the protection member. 5, the protecting member 600 is shown as being rolled up or unwound, but the present invention is not limited thereto. For example, the guard member 600 may be laterally spread or folded along the perimeter of the frame 100, and may be folded and unfolded in the same manner as a curtain. In addition, the above-described protecting member operating means can be appropriately modified in accordance with the shape of the protecting member 600. [

By covering the maintenance means 60 as described above, scattering of by-products such as dust and debris generated during the maintenance work can be reduced to the outside of the area covered with the protection member 600 And by including the protection member operating means, there is an effect that the protection member 600 can be spread more easily.

5, one leg moving unit 50 is included in the leg maintenance apparatus 40 in the above-described embodiment. However, according to the third embodiment to be described below, A maintenance apparatus 40 of the leg including the mobile unit 50 may be proposed. Hereinafter, the third embodiment will be described with reference to FIG. Fig. 7 is a plan view of the leg maintenance device 40. Fig.

In describing the third embodiment of the present invention, there is a difference in that the leg maintenance apparatus 40 includes a plurality of vertically moving units 50 as compared with the above-described first embodiment, And the same explanations and reference numerals are used herein.

Referring to Fig. 7, the leg includes three code portions, and three up-and-down movement units 50 are supported by three code portions. At this time, the frame 100 of one up-and-down moving unit 50 may include a frame extending portion 106 extending in the direction toward the other up-down moving unit 50. The end of the frame extending portion 106 included in the frame 100 of one up-and-down moving unit 50 can be fastened to the other up-down moving unit 50. Similarly, the frame 100 of the other up-and-down moving unit 50 may include the frame extending portion 106 in the direction toward another up-down moving unit 50, and the other up-down moving unit 50 50 can be fastened to another one of the up-and-down moving units 50. As shown in Fig.

The maintenance means 60 is provided in the frame 100 or in the platform 101 included in the frame 100. According to the present embodiment, May be provided to the frame extension portion 106 included in the frame 100.

In the above description, the vertical movement unit 50 has been described as having one frame extension 106. However, the spirit of the present invention is not limited to this, and it is possible to freely modify the scope of the present invention . For example, when the up-and-down moving unit 50 has two frame extending portions 106 and the end of the frame extending portion 106 of one up-down moving unit 50 is connected to the other upper- And may be fastened to the end of the frame extension portion 106. [

7, the upper and lower movable units 50 are supported by all the code units included in the legs. However, the present invention is not limited to this, and the number of the upper and lower movable units 50 May be provided less than the number of code portions included in the leg.

Thus, there is an effect that a plurality of code portions included in the legs 20 can be simultaneously operated. Further, when the maintenance means 60 is provided to the frame extension portion 106, the maintenance work for the brace 21 can be performed more easily.

On the other hand, according to the above-described third embodiment, a protection member can be also provided in a configuration additionally included in the maintenance apparatus 40 of the leg. For example, unit protecting members 601 and 602 included in the up-and-down moving unit can be extended between the up-and-down moving units 50 of the leg maintenance apparatus 40. Alternatively, the maintenance apparatus 40 of the leg may additionally include a protection member (brace protection member 603) separate from the unit protection members 601 and 602 included in the up-and-down moving unit 50. [ In addition, when the leg maintenance apparatus 40 includes the brace protecting member 603, the brace protecting member 602 can be connected to the unit protecting members 601 and 602. [

Although the number of the vertically movable units included in the leg maintenance apparatus is the same as the number of the code units in the present embodiment, the concept of the present invention is not limited to this, and the number of the vertically movable units is smaller than the number of the code units (That is, if the number of code units is three, the maintenance apparatus of the leg may include two up-down mobile units 50).

In order to smoothly perform the work by the maintenance means 60, a sufficient space for the work must be secured. According to the above-described embodiments, the work space on the frame 100 is not sufficiently secured, There is a possibility that interference may occur between the base station 60 and the base station. Therefore, in order to solve such a problem, the fourth embodiment described below can be proposed.

Hereinafter, the fourth embodiment will be described with reference to FIG. 7 shows a maintenance apparatus for a leg according to the fourth embodiment. The frame 100 of the leg maintenance apparatus according to the fourth embodiment of the present invention may form a plurality of layers. One of the maintenance means 60 may be provided in the layer of such a frame 100. In addition, each layer of the frame may have a platform 101, in which one of the maintenance means 60 may be provided in the platform 101 that the layer of the frame contains. As shown in FIG. 7, when the frame 100 is provided in three layers and the platform 101 is included in each layer of the frame 100, the coating means 300 is provided on the platform 101 The platform 101 of the upper layer is provided with the cleaning means 500 and the brace replacement means 400 may be provided on the uppermost layer.

Since the maintenance means 60 can be disposed on different layers of the platform 101, the maintenance means 60 can secure a sufficient working space.

The shape of the platform 101 according to the fourth embodiment described above can be applied even when the frame 100 is provided to extend along the outermost brace 22 and the frame extension portion 106 ). For example, the frame extension 106 frame may form a plurality of layers, and one of the maintenance means 60 may be provided in the layer of such a frame. A platform 101 may also be provided on the frame layer formed on the frame extension 106 so that one of the maintenance means 60 may be provided on the platform 101 layer.

Hereinafter, a leg maintenance apparatus according to a fifth embodiment of the present invention will be described with reference to FIG. 9 is a plan view showing a maintenance apparatus for legs according to a fifth embodiment of the present invention.

The present embodiment differs from the above-described embodiments in that the up-and-down moving unit includes a supporting unit, so that differences are mainly described, and the same explanations and reference numerals are used.

9, the up-and-down movement unit of the maintenance apparatus of the leg according to the present embodiment includes a support unit 220, which can move up and down the legs And a supporting member guiding means 224 for guiding the supporting member 222. The support member 222 is provided with a supporting member 222, At this time, the support member 222 may include a roller (not shown) at a portion in contact with the cord portion so that the up-and-down moving unit can move in a state where the support member 222 and the code portion are in contact with each other.

Hereinafter, the operation and effect of the support unit 220 will be described. The first support portion 102 and the second support portion 103 of the up-and-down moving unit 50 include the support unit 220. When the pinion 210 and the rack 26 are engaged with each other in the process of being supported by the legs, the support member 222 moves to the cord portion according to the support member guiding means 224, do. Such a support unit 220 may be included above and below the drive motor 200 included in the first support portion 102 and the second support portion 103.

As described above, since the support member 222 is brought into contact with the cord portion, the up-and-down moving unit 50 can be more firmly supported on the legs and can move more stably up and down the legs.

9, the support member 222 is in contact with the front surface and the rear surface (that is, both sides of the rack gear) of the rack 26 and the support member 222 slides through the support member guide means 224 The present invention is not limited thereto. For example, the support member 222 may be provided in a form in contact with the cord 24 of the leg instead of the rack 26 of the leg, or the support member guide means 224 may be provided in a hinged manner, As shown in FIG.

While the present invention has been described in connection with certain embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims. Should be interpreted. Skilled artisans may implement a pattern of features that are not described in a combinatorial and / or permutational manner with the disclosed embodiments, but this is not to depart from the scope of the present invention. It will be apparent to those skilled in the art that various changes and modifications may be readily made without departing from the spirit and scope of the invention as defined by the appended claims.

1: Floating structure 10: Body
20: Leg 21: Brace
22: Outer brace 23: Inside brace
24: Code 26: Rack
40: Leg maintenance device 50: Up-and-down mobile unit
60: Maintenance means 100: Frame
101: Platform 102: First support
103: second support portion 104: guide rail
105: protection member fixing part 106: frame extension part
200: drive motor 210: pinion
222: support member 224: support member guide means
300: Coating means 301: Coating nozzle
302: pressure providing means 400: brace replacing means
401: cutting device 402: arm
500: Cleaning means 501: Brush
502: Driving device 503: Rail
600: protection member 601: back protection member
602: side protection member 603: brace protection member

Claims (13)

And a vertical moving unit provided so as to be movable up and down with respect to a leg for selectively fixing the floating structure to the seabed,
The up-and-
frame;
A pinion engaging a rack included in the leg;
A driving motor provided in the frame, for rotating the pinion to move the up-and-down moving unit;
Maintenance means provided in the frame, the maintenance means including equipment for maintaining and repairing the code portion;
A unit protective member covering the back surface of the maintenance means; And
And a protection member actuating means capable of unfolding or winding the unit protective member. delete delete The method according to claim 1,
Wherein the maintenance means comprises at least one of a coating means, a cleaning means and a brace replacement means. The method according to claim 1,
Wherein the frame extends to correspond to all or a portion of the outermost brace. The method according to claim 1,
Wherein the frame comprises a platform for providing a work space, and wherein the maintenance means is disposed on the platform. The method according to claim 1,
Wherein the plurality of vertically moving units are provided,
Wherein the number of the vertically movable units is less than or equal to the number of the code units included in the legs. 8. The method of claim 7,
Wherein the up-and-down moving unit is provided with a unit protecting member covering the back surface of the maintenance means,
Between the up-and-down moving units, a brace protecting member is provided,
Wherein the brace protecting member is provided extending from the unit protecting member or provided as a member separate from the unit protecting member. 9. The method of claim 8,
And protection member operating means capable of expanding or winding at least one of said unit protective member and said brace protective member. 8. The method of claim 7,
Wherein the frame includes a frame extension extending from one up-down mobile unit to another up-down mobile unit. The method of claim 10, wherein
Wherein the maintenance means is provided in the frame extension. The method according to claim 1,
The maintenance means includes a coating means, a cleaning means and a brace replacement means
The frame including a plurality of frame layers,
Said coating means being provided in one of said plurality of frame layers,
Said cleaning means being provided on the other of said plurality of frame layers,
Wherein the brace replacing means is provided on another one of the plurality of frame layers. The method according to claim 1,
Wherein the up-and-down moving unit includes a supporting unit,
The support unit comprising a support member and a support member guide means,
The support member supports the up and down moving unit in contact with the cord portion,
Wherein the support member guide means moves or fixes the support member.
KR1020150108000A 2015-07-30 2015-07-30 Maintenance apparatus of leg of floating structure KR101742218B1 (en)

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Publication number Priority date Publication date Assignee Title
KR101996311B1 (en) * 2017-06-09 2019-07-04 삼성중공업 주식회사 System for fabricating leg
KR102427177B1 (en) * 2018-09-18 2022-07-29 삼성중공업 주식회사 Apparatus for removing foreign matter
KR102415766B1 (en) * 2018-09-19 2022-07-04 삼성중공업 주식회사 Apparatus for removing soil for leg of floating structure

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